278 lines
8.0 KiB
Tcsh
278 lines
8.0 KiB
Tcsh
#!/bin/csh -f
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#
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# Sccs2rcs is a script to convert an existing SCCS
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# history into an RCS history without losing any of
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# the information contained therein.
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# It has been tested under the following OS's:
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# SunOS 3.5, 4.0.3, 4.1
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# Ultrix-32 2.0, 3.1
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#
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# Things to note:
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# + It will NOT delete or alter your ./SCCS history under any circumstances.
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#
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# + Run in a directory where ./SCCS exists and where you can
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# create ./RCS
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#
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# + /usr/local/bin is put in front of the default path.
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# (SCCS under Ultrix is set-uid sccs, bad bad bad, so
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# /usr/local/bin/sccs here fixes that)
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#
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# + Date, time, author, comments, branches, are all preserved.
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#
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# + If a command fails somewhere in the middle, it bombs with
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# a message -- remove what it's done so far and try again.
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# "rm -rf RCS; sccs unedit `sccs tell`; sccs clean"
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# There is no recovery and exit is far from graceful.
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# If a particular module is hanging you up, consider
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# doing it separately; move it from the current area so that
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# the next run will have a better chance or working.
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# Also (for the brave only) you might consider hacking
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# the s-file for simpler problems: I've successfully changed
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# the date of a delta to be in sync, then run "sccs admin -z"
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# on the thing.
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#
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# + After everything finishes, ./SCCS will be moved to ./old-SCCS.
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#
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# This file may be copied, processed, hacked, mutilated, and
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# even destroyed as long as you don't tell anyone you wrote it.
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#
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# Ken Cox
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# Viewlogic Systems, Inc.
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# kenstir@viewlogic.com
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# ...!harvard!cg-atla!viewlog!kenstir
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#
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# Various hacks made by Brian Berliner before inclusion in CVS contrib area.
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#
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# sccs2rcs,v 1.1 1992/04/10 03:04:26 berliner Exp
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#we'll assume the user set up the path correctly
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# for the Pmax, /usr/ucb/sccs is suid sccs, what a pain
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# /usr/local/bin/sccs should override /usr/ucb/sccs there
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set path = (/usr/local/bin $path)
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############################################################
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# Error checking
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#
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if (! -w .) then
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echo "Error: ./ not writeable by you."
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exit 1
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endif
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if (! -d SCCS) then
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echo "Error: ./SCCS directory not found."
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exit 1
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endif
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set edits = (`sccs tell`)
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if ($#edits) then
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echo "Error: $#edits file(s) out for edit...clean up before converting."
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exit 1
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endif
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if (-d RCS) then
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echo "Warning: RCS directory exists"
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if (`ls -a RCS | wc -l` > 2) then
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echo "Error: RCS directory not empty
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exit 1
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endif
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else
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mkdir RCS
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endif
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sccs clean
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set logfile = /tmp/sccs2rcs_$$_log
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rm -f $logfile
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set tmpfile = /tmp/sccs2rcs_$$_tmp
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rm -f $tmpfile
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set emptyfile = /tmp/sccs2rcs_$$_empty
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echo -n "" > $emptyfile
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set initialfile = /tmp/sccs2rcs_$$_init
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echo "Initial revision" > $initialfile
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set sedfile = /tmp/sccs2rcs_$$_sed
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rm -f $sedfile
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set revfile = /tmp/sccs2rcs_$$_rev
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rm -f $revfile
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# the quotes surround the dollar signs to fool RCS when I check in this script
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set sccs_keywords = (\
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'%W%[ ]*%G%'\
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'%W%[ ]*%E%'\
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'%W%'\
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'%Z%%M%[ ]*%I%[ ]*%G%'\
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'%Z%%M%[ ]*%I%[ ]*%E%'\
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'%M%[ ]*%I%[ ]*%G%'\
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'%M%[ ]*%I%[ ]*%E%'\
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'%M%'\
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'%I%'\
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'%G%'\
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'%E%'\
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'%U%')
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set rcs_keywords = (\
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'$'Id'$'\
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'$'Id'$'\
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'$'Id'$'\
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'$'SunId'$'\
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'$'SunId'$'\
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'$'Id'$'\
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'$'Id'$'\
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'$'RCSfile'$'\
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'$'Revision'$'\
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'$'Date'$'\
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'$'Date'$'\
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'')
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############################################################
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# Get some answers from user
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#
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echo ""
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echo "Do you want to be prompted for a description of each"
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echo "file as it is checked in to RCS initially?"
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echo -n "(y=prompt for description, n=null description) [y] ?"
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set ans = $<
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if ((_$ans == _) || (_$ans == _y) || (_$ans == _Y)) then
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set nodesc = 0
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else
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set nodesc = 1
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endif
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echo ""
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echo "The default keyword substitutions are as follows and are"
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echo "applied in the order specified:"
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set i = 1
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while ($i <= $#sccs_keywords)
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# echo ' '\"$sccs_keywords[$i]\"' ==> '\"$rcs_keywords[$i]\"
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echo " $sccs_keywords[$i] ==> $rcs_keywords[$i]"
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@ i = $i + 1
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end
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echo ""
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echo -n "Do you want to change them [n] ?"
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set ans = $<
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if ((_$ans != _) && (_$ans != _n) && (_$ans != _N)) then
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echo "You can't always get what you want."
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echo "Edit this script file and change the variables:"
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echo ' $sccs_keywords'
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echo ' $rcs_keywords'
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else
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echo "good idea."
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endif
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# create the sed script
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set i = 1
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while ($i <= $#sccs_keywords)
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echo "s,$sccs_keywords[$i],$rcs_keywords[$i],g" >> $sedfile
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@ i = $i + 1
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end
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onintr ERROR
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############################################################
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# Loop over every s-file in SCCS dir
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#
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foreach sfile (SCCS/s.*)
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# get rid of the "s." at the beginning of the name
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set file = `echo $sfile:t | sed -e "s/^..//"`
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# work on each rev of that file in ascending order
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set firsttime = 1
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sccs prs $file | grep "^D " | awk '{print $2}' | sed -e 's/\./ /g' | sort -n -u +0 +1 +2 +3 +4 +5 +6 +7 +8 | sed -e 's/ /./g' > $revfile
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foreach rev (`cat $revfile`)
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if ($status != 0) goto ERROR
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# get file into current dir and get stats
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set date = `sccs prs -r$rev $file | grep "^D " | awk '{printf("19%s %s", $3, $4); exit}'`
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set author = `sccs prs -r$rev $file | grep "^D " | awk '{print $5; exit}'`
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echo ""
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echo "==> file $file, rev=$rev, date=$date, author=$author"
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sccs edit -r$rev $file >>& $logfile
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if ($status != 0) goto ERROR
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echo checked out of SCCS
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# add RCS keywords in place of SCCS keywords
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sed -f $sedfile $file > $tmpfile
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if ($status != 0) goto ERROR
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echo performed keyword substitutions
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cp $tmpfile $file
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# check file into RCS
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if ($firsttime) then
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set firsttime = 0
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if ($nodesc) then
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echo about to do ci
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echo ci -f -r$rev -d"$date" -w$author -t$emptyfile $file
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ci -f -r$rev -d"$date" -w$author -t$emptyfile $file < $initialfile >>& $logfile
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if ($status != 0) goto ERROR
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echo initial rev checked into RCS without description
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else
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echo ""
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echo Enter a brief description of the file $file \(end w/ Ctrl-D\):
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cat > $tmpfile
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ci -f -r$rev -d"$date" -w$author -t$tmpfile $file < $initialfile >>& $logfile
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if ($status != 0) goto ERROR
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echo initial rev checked into RCS
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endif
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else
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# get RCS lock
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set lckrev = `echo $rev | sed -e 's/\.[0-9]*$//'`
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if ("$lckrev" =~ [0-9]*.*) then
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# need to lock the brach -- it is OK if the lock fails
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rcs -l$lckrev $file >>& $logfile
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else
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# need to lock the trunk -- must succeed
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rcs -l $file >>& $logfile
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if ($status != 0) goto ERROR
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endif
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echo got lock
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sccs prs -r$rev $file | grep "." > $tmpfile
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# it's OK if grep fails here and gives status == 1
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# put the delta message in $tmpfile
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ed $tmpfile >>& $logfile <<EOF
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/COMMENTS
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1,.d
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w
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q
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EOF
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ci -f -r$rev -d"$date" -w$author $file < $tmpfile >>& $logfile
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if ($status != 0) goto ERROR
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echo checked into RCS
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endif
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sccs unedit $file >>& $logfile
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if ($status != 0) goto ERROR
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end
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rm -f $file
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end
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############################################################
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# Clean up
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#
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echo cleaning up...
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mv SCCS old-SCCS
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rm -f $tmpfile $emptyfile $initialfile $sedfile
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echo ===================================================
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echo " Conversion Completed Successfully"
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echo ""
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echo " SCCS history now in old-SCCS/"
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echo ===================================================
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set exitval = 0
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goto cleanup
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ERROR:
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foreach f (`sccs tell`)
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sccs unedit $f
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end
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echo ""
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echo ""
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echo Danger\! Danger\!
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echo Some command exited with a non-zero exit status.
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echo Log file exists in $logfile.
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echo ""
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echo Incomplete history in ./RCS -- remove it
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echo Original unchanged history in ./SCCS
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set exitval = 1
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cleanup:
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# leave log file
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rm -f $tmpfile $emptyfile $initialfile $sedfile $revfile
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exit $exitval
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